具有优异储锂性能的三维多孔硅-MWNT 杂化结构。

Three-dimensional porous silicon-MWNT heterostructure with superior lithium storage performance.

机构信息

Institute of Electrochemical and Energy Technology, Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.

出版信息

Phys Chem Chem Phys. 2011 Dec 7;13(45):20108-11. doi: 10.1039/c1cp23062j. Epub 2011 Oct 17.

DOI:10.1039/c1cp23062j

PMID:22005831

Abstract

A novel three-dimensional porous Si-MWNT heterostructure was designed to meet the demand of high-capacity and long-life lithium storage. This material presented a stable capacity above 1000 mAh g(-1) for nearly 200 cycles, which benefited from its highly porous structure combined with robust MWNT connections that accommodated the host volume change and improved the electric conductivity.

摘要

设计了一种新型的三维多孔硅-多壁碳纳米管杂化结构，以满足高容量和长寿命锂存储的需求。该材料在近 200 个循环中表现出稳定的容量超过 1000 mAh g(-1)，这得益于其高度多孔的结构与坚固的 MWNT 连接相结合，适应了主体的体积变化并提高了电导率。